<template>
  <el-container>
    <el-aside
      v-loading="showDicloading"
      width="300px"
    >
      <el-container>
        <el-header>
          <el-input
            v-model="dicFilterText"
            placeholder="输入关键字进行过滤"
            clearable
          />
        </el-header>
        <el-main class="nopadding">
          <el-tree
            ref="dic"
            class="menu"
            node-key="id"
            :data="dicList"
            :props="dicProps"
            :highlight-current="true"
            :expand-on-click-node="false"
            :filter-node-method="dicFilterNode"
            @node-click="dicClick"
          >
            <template #default="{ node, data }">
              <span class="custom-tree-node">
                <span class="label">{{ node.label }}</span>
                <span class="code">{{ data.code }}</span>
                <span class="do">
                  <el-button-group>
                    <el-button
                      icon="el-icon-edit"
                      size="small"
                      @click.stop="dicEdit(data)"
                    />
                    <el-button
                      icon="el-icon-delete"
                      size="small"
                      @click.stop="dicDel(node, data)"
                    />
                  </el-button-group>
                </span>
              </span>
            </template>
          </el-tree>
        </el-main>
        <el-footer style="height: 51px">
          <el-button
            type="primary"
            size="small"
            icon="el-icon-plus"
            style="width: 100%"
            @click="addDic"
          >
            字典分类
          </el-button>
        </el-footer>
      </el-container>
    </el-aside>
    <el-container class="is-vertical">
      <el-header>
        <div class="left-panel">
          <el-button
            type="primary"
            icon="el-icon-plus"
            @click="addInfo"
          />
          <el-button
            type="danger"
            plain
            icon="el-icon-delete"
            :disabled="selection.length == 0"
            @click="batch_del"
          />
        </div>
      </el-header>
      <el-main class="nopadding">
        <scTable
          ref="table"
          :api-obj="listApi"
          row-key="id"
          :params="listApiParams"
          stripe
          :pagination-layout="'prev, pager, next'"
          @selection-change="selectionChange"
        >
          <el-table-column
            type="selection"
            width="50"
          />
          <el-table-column
            label=""
            width="60"
          >
            <template #default>
              <el-tag
                class="move"
                style="cursor: move"
              >
                <el-icon-d-caret style="width: 1em; height: 1em" />
              </el-tag>
            </template>
          </el-table-column>
          <el-table-column
            label="名称"
            prop="name"
            width="150"
          />
          <el-table-column
            label="键值"
            prop="key"
            width="150"
          />
          <el-table-column
            label="是否有效"
            prop="yx"
            width="100"
          >
            <template #default="scope">
              <el-switch
                v-model="scope.row.yx"
                :loading="scope.row.$switch_yx"
                active-value="1"
                inactive-value="0"
                @change="changeSwitch($event, scope.row)"
              />
            </template>
          </el-table-column>
          <el-table-column
            label="操作"
            fixed="right"
            align="right"
            width="120"
          >
            <template #default="scope">
              <el-button-group>
                <el-button
                  text
                  type="primary"
                  size="small"
                  @click="table_edit(scope.row, scope.$index)"
                >
                  编辑
                </el-button>
                <el-popconfirm
                  title="确定删除吗？"
                  @confirm="table_del(scope.row, scope.$index)"
                >
                  <template #reference>
                    <el-button
                      text
                      type="primary"
                      size="small"
                    >
                      删除
                    </el-button>
                  </template>
                </el-popconfirm>
              </el-button-group>
            </template>
          </el-table-column>
        </scTable>
      </el-main>
    </el-container>
  </el-container>

  <dic-dialog
    v-if="dialog.dic"
    ref="dicDialog"
    @success="handleDicSuccess"
    @closed="dialog.dic = false"
  />

  <list-dialog
    v-if="dialog.list"
    ref="listDialog"
    @success="handleListSuccess"
    @closed="dialog.list = false"
  />
</template>

<script>
import dicDialog from "./dic";
import listDialog from "./list";
import Sortable from "sortablejs";

export default {
  name: "Dic",
  components: {
    dicDialog,
    listDialog,
  },
  data() {
    return {
      dialog: {
        dic: false,
        info: false,
      },
      showDicloading: true,
      dicList: [],
      dicFilterText: "",
      dicProps: {
        label: "name",
      },
      listApi: null,
      listApiParams: {},
      selection: [],
    };
  },
  watch: {
    dicFilterText(val) {
      this.$refs.dic.filter(val);
    },
  },
  mounted() {
    this.getDic();
    this.rowDrop();
  },
  methods: {
    //加载树数据
    async getDic() {
      var res = await this.$API.system.dic.tree.get();
      this.showDicloading = false;
      this.dicList = res.data;
      //获取第一个节点,设置选中 & 加载明细列表
      var firstNode = this.dicList[0];
      if (firstNode) {
        this.$nextTick(() => {
          this.$refs.dic.setCurrentKey(firstNode.id);
        });
        this.listApiParams = {
          code: firstNode.code,
        };
        this.listApi = this.$API.system.dic.list;
      }
    },
    //树过滤
    dicFilterNode(value, data) {
      if (!value) return true;
      var targetText = data.name + data.code;
      return targetText.indexOf(value) !== -1;
    },
    //树增加
    addDic() {
      this.dialog.dic = true;
      this.$nextTick(() => {
        this.$refs.dicDialog.open();
      });
    },
    //编辑树
    dicEdit(data) {
      this.dialog.dic = true;
      this.$nextTick(() => {
        var editNode = this.$refs.dic.getNode(data.id);
        var editNodeParentId =
          editNode.level == 1 ? undefined : editNode.parent.data.id;
        data.parentId = editNodeParentId;
        this.$refs.dicDialog.open("edit").setData(data);
      });
    },
    //树点击事件
    dicClick(data) {
      this.$refs.table.reload({
        code: data.code,
      });
    },
    //删除树
    dicDel(node, data) {
      this.$confirm(`确定删除 ${data.name} 项吗？`, "提示", {
        type: "warning",
      })
        .then(() => {
          this.showDicloading = true;

          //删除节点是否为高亮当前 是的话 设置第一个节点高亮
          var dicCurrentKey = this.$refs.dic.getCurrentKey();
          this.$refs.dic.remove(data.id);
          if (dicCurrentKey == data.id) {
            var firstNode = this.dicList[0];
            if (firstNode) {
              this.$refs.dic.setCurrentKey(firstNode.id);
              this.$refs.table.upData({
                code: firstNode.code,
              });
            } else {
              this.listApi = null;
              this.$refs.table.tableData = [];
            }
          }

          this.showDicloading = false;
          this.$message.success("操作成功");
        })
        .catch(() => {});
    },
    //行拖拽
    rowDrop() {
      const _this = this;
      const tbody = this.$refs.table.$el.querySelector(
        ".el-table__body-wrapper tbody"
      );
      Sortable.create(tbody, {
        handle: ".move",
        animation: 300,
        ghostClass: "ghost",
        onEnd({ newIndex, oldIndex }) {
          const tableData = _this.$refs.table.tableData;
          const currRow = tableData.splice(oldIndex, 1)[0];
          tableData.splice(newIndex, 0, currRow);
          _this.$message.success("排序成功");
        },
      });
    },
    //添加明细
    addInfo() {
      this.dialog.list = true;
      this.$nextTick(() => {
        var dicCurrentKey = this.$refs.dic.getCurrentKey();
        const data = {
          dic: dicCurrentKey,
        };
        this.$refs.listDialog.open().setData(data);
      });
    },
    //编辑明细
    table_edit(row) {
      this.dialog.list = true;
      this.$nextTick(() => {
        this.$refs.listDialog.open("edit").setData(row);
      });
    },
    //删除明细
    async table_del(row, index) {
      var reqData = { id: row.id };
      var res = await this.$API.demo.post.post(reqData);
      if (res.code == 200) {
        this.$refs.table.tableData.splice(index, 1);
        this.$message.success("删除成功");
      } else {
        this.$alert(res.message, "提示", { type: "error" });
      }
    },
    //批量删除
    async batch_del() {
      this.$confirm(`确定删除选中的 ${this.selection.length} 项吗？`, "提示", {
        type: "warning",
      })
        .then(() => {
          const loading = this.$loading();
          this.selection.forEach((item) => {
            this.$refs.table.tableData.forEach((itemI, indexI) => {
              if (item.id === itemI.id) {
                this.$refs.table.tableData.splice(indexI, 1);
              }
            });
          });
          loading.close();
          this.$message.success("操作成功");
        })
        .catch(() => {});
    },
    //提交明细
    saveList() {
      this.$refs.listDialog.submit(async (formData) => {
        this.isListSaveing = true;
        var res = await this.$API.demo.post.post(formData);
        this.isListSaveing = false;
        if (res.code == 200) {
          //这里选择刷新整个表格 OR 插入/编辑现有表格数据
          this.listDialogVisible = false;
          this.$message.success("操作成功");
        } else {
          this.$alert(res.message, "提示", { type: "error" });
        }
      });
    },
    //表格选择后回调事件
    selectionChange(selection) {
      this.selection = selection;
    },
    //表格内开关事件
    changeSwitch(val, row) {
      //1.还原数据
      row.yx = row.yx == "1" ? "0" : "1";
      //2.执行加载
      row.$switch_yx = true;
      //3.等待接口返回后改变值
      setTimeout(() => {
        delete row.$switch_yx;
        row.yx = val;
        this.$message.success(`操作成功id:${row.id} val:${val}`);
      }, 500);
    },
    //本地更新数据
    handleDicSuccess(data, mode) {
      if (mode == "add") {
        data.id = new Date().getTime();
        if (this.dicList.length > 0) {
          this.$refs.table.upData({
            code: data.code,
          });
        } else {
          this.listApiParams = {
            code: data.code,
          };
          this.listApi = this.$API.dic.info;
        }
        this.$refs.dic.append(data, data.parentId[0]);
        this.$refs.dic.setCurrentKey(data.id);
      } else if (mode == "edit") {
        var editNode = this.$refs.dic.getNode(data.id);
        //判断是否移动？
        var editNodeParentId =
          editNode.level == 1 ? undefined : editNode.parent.data.id;
        if (editNodeParentId != data.parentId) {
          var obj = editNode.data;
          this.$refs.dic.remove(data.id);
          this.$refs.dic.append(obj, data.parentId[0]);
        }
        Object.assign(editNode.data, data);
      }
    },
    //本地更新数据
    handleListSuccess(data, mode) {
      if (mode == "add") {
        data.id = new Date().getTime();
        this.$refs.table.tableData.push(data);
      } else if (mode == "edit") {
        this.$refs.table.tableData
          .filter((item) => item.id === data.id)
          .forEach((item) => {
            Object.assign(item, data);
          });
      }
    },
  },
};
</script>

<style scoped>
.menu:deep(.el-tree-node__label) {
  display: flex;
  flex: 1;
  height: 100%;
}
.custom-tree-node {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  padding-right: 24px;
  height: 100%;
}
.custom-tree-node .code {
  font-size: 12px;
  color: #999;
}
.custom-tree-node .do {
  display: none;
}
.custom-tree-node:hover .code {
  display: none;
}
.custom-tree-node:hover .do {
  display: inline-block;
}
</style>
